Wow - the GPRS card in my laptop seems to work out much cheaper, I don't need to worry about setup/connections as it is always there. There is no external antenna. All just works.
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Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock